20815982

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2621}}^1$

素因数の和:2672

約数の個数: 24

約数和(自身を含む): 35963352

約数和(自身を除く): 15147370

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 2621, 3971, 5242, 7942, 28831, 49799, 57662, 99598, 547789, 946181, 1095578, 1892362, 10407991, 20815982]

約数ペア:

[(1, 20815982), (2, 10407991), (11, 1892362), (19, 1095578), (22, 946181), (38, 547789), (209, 99598), (361, 57662), (418, 49799), (722, 28831), (2621, 7942), (3971, 5242)]